bool InnerNode::read_from(BlockReader& reader, bool skeleton_only)
{
if (!reader.readBool(&bottom_)) return false;
uint32_t pn;
if (!reader.readUInt32(&pn)) return false;
pivots_.resize(pn);
if (!reader.readUInt64(&first_child_)) return false;
if (!reader.readUInt32(&first_msgbuf_offset_)) return false;
if (!reader.readUInt32(&first_msgbuf_length_)) return false;
if (!reader.readUInt32(&first_msgbuf_uncompressed_length_)) return false;
for (size_t i = 0; i < pn; i++) {
if (!reader.readSlice(pivots_[i].key)) return false;
pivots_sz_ += pivot_size(pivots_[i].key);
if (!reader.readUInt64(&(pivots_[i].child))) return false;
pivots_[i].msgbuf = NULL; // unloaded
if (!reader.readUInt32(&(pivots_[i].offset))) return false;
if (!reader.readUInt32(&(pivots_[i].length))) return false;
if (!reader.readUInt32(&(pivots_[i].uncompressed_length))) return false;
}
if (!skeleton_only) {
if (!load_all_msgbuf(reader)) return false;
} else {
status_ = kSkeletonLoaded;
}
return true;
}
bool Layout::read_block_meta(BlockMeta* meta, BlockReader& reader)
{
if (!reader.readUInt64(&(meta->offset))) return false;
if (!reader.readUInt32(&(meta->skeleton_size))) return false;
if (!reader.readUInt32(&(meta->total_size))) return false;
if (!reader.readUInt16(&(meta->crc))) return false;
return true;
}
bool LeafNode::read_buckets_info(BlockReader& reader)
{
uint32_t nbuckets;
if (!reader.readUInt32(&nbuckets)) return false;
buckets_info_.resize(nbuckets);
buckets_info_size_ = 4;
for (size_t i = 0; i < nbuckets; i++ ) {
if (!reader.readSlice(buckets_info_[i].key)) return false;
if (!reader.readUInt32(&(buckets_info_[i].offset))) return false;
if (!reader.readUInt32(&(buckets_info_[i].length))) return false;
if (!reader.readUInt32(&(buckets_info_[i].uncompressed_length))) return false;
buckets_info_size_ += 4 + buckets_info_[i].key.size() + 4 + 4 + 4;
}
// init buckets number
records_.set_buckets_number(nbuckets);
status_ = kSkeletonLoaded;
return true;
}
bool LeafNode::read_bucket(BlockReader& reader,
RecordBucket *bucket)
{
uint32_t nrecords;
if (!reader.readUInt32(&nrecords)) return false;
bucket->resize(nrecords);
for (size_t i = 0; i < nrecords; i++) {
if (!(*bucket)[i].read_from(reader)) {
return false;
}
}
return true;
}
bool MsgBuf::read_from(BlockReader& reader)
{
uint32_t cnt = 0;
if (!reader.readUInt32(&cnt)) return false;
// container_.resize(cnt);
// for (size_t i = 0; i < cnt; i++ ) {
// if (!container_[i].read_from(reader)) return false;
// size_ += container_[i].size();
// }
for (size_t i = 0; i < cnt; i++ ) {
Msg msg;
if (!msg.read_from(reader)) return false;
size_ += msg.size();
container_.push_back(msg);
}
return true;
}
bool Layout::read_index(BlockReader& reader)
{
ScopedMutex block_index_lock(&block_index_mtx_);
assert(block_index_.size() == 0);
uint32_t n;
if (!reader.readUInt32(&n)) return false;
for (uint32_t i = 0; i < n; i++ ) {
bid_t bid;
BlockMeta* meta = new BlockMeta();
if (reader.readUInt64(&bid) && read_block_meta(meta, reader)) {
block_index_[bid] = meta;
continue;
}
delete meta;
return false;
}
return true;
}
